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Mazda Protege 5. Manual - part 116

SYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM (FS)]

01–03B–57

01–03B

VICS Operation Inspection

1. Start the engine.
2. Verify that the rod of VICS shutter valve actuator is pulled.

•

If the rod is pulled, proceed to next step .

•

If the rod is not pulled, inspect as follows.
— Loose or damaged vacuum hose and vacuum chamber
— Shutter valve actuator (See 01–13B–11 VARIABLE INERTIA CHARGING SYSTEM (VICS) SHUTTER

VALVE ACTUATOR INSPECTION [FS].)

— VICS solenoid valve inspection (See 01–13B–12 VARIABLE INERTIA CHARGING SYSTEM (VICS)

SOLENOID VALVE INSPECTION [FS].)

3. Inspect the rod operation under the following

condition.

•

If the rod operation is not as specified, inspect
as follows.
— Shutter valve actuator (See 01–13B–11

VARIABLE INERTIA CHARGING
SYSTEM (VICS) SHUTTER VALVE
ACTUATOR INSPECTION [FS]

— VICS solenoid valve inspection (See 01–

13B–12 VARIABLE INERTIA CHARGING
SYSTEM (VICS) SOLENOID VALVE
INSPECTION [FS].)

Note

•

The shutter valve actuator rod extends for five seconds after the engine is started.

Rod operation

Variable Tumble Control System (VTCS) Inspection

1. Connect the WDS or equivalent to the DLC-2.
2. Access ECT PID.
3. Verify ECT PID is 65

°°°°

C {149

°°°°

F} or less.

4. Start the engine.
5. Verify that the rod of tumble swirl control actuator is pulled.

•

If the rod is not pulled, inspect the following.
— VTCS shutter valve actuator
— VTCS delay valve
— VTCS chamber
— Vacuum hose
— Tumble swirl control solenoid valve
— Wiring harness and connectors (Main relay — VTCS solenoid valve — PCM terminal 73)

6. Access RPM PID.
7. Inspect the rod operation under the following

condition.

•

If the rod operation is not as specified, inspect
the following:
— Tumble swirl control actuator
— Vacuum delay valve
— Vacuum chamber
— Vacuum hose
— VTCS solenoid valve
— Wiring harness and connectors (Main

relay — VTCS solenoid valve — PCM
terminal 73)

Engine speed (rpm)

5,250

Shutter valve actuator

Not operate

Operate

Y3U103WQ0

X3U101WEB

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SYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM (FS)]

01–03B–58

Rod operation

Pressure Regulator Control Inspection

Warning

••••

Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death.
Fuel can also irritate skin and eyes.

••••

To prevent this, always complete the “Before Repair Procedure.” (See 01–14–4 BEFORE REPAIR
PROCEDURE.)

1. Disconnect the negative battery cable.
2. Connect a fuel SST between the fuel filter and

fuel distributor.

3. Connect the negative battery cable.
4. Measure the fuel line pressure under the following

conditions.

Specification

Inspection 1

1. Inspect the following.

•

ECT, IAT, TP PIDs.

•

Pressure regulator

•

PRC solenoid valve

Inspection 2

1. Inspect the following.

•

Loose or damage vacuum hose (Pressure regulator —PRC solenoid valve— intake manifold)

•

PRC solenoid valve

Engine speed (RPM PID)

(rpm)

Tumble swirl control

actuator

3,000 or less

Operate

3,000 or more

Not operate

Condition

Fuel pressure (kPa {kgf/cm

, psi})

Idling

210—250
{2.1—2.6,

30—36}

210—250
{2.1—2.6,

30—36}

270—310
{2.7—3.2,

39—45}

During 100
sec. of hot
start

270—310
{2.7—3.2,

39—45}

After 100 sec.
of hot start

210—250
{2.1—2.6,

30—36}

Judgment

Normal

Not Normal

(Perform

Inspection 1)

Not Normal

(Perform

Inspection 2)

Y3U103WQ2

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SYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM (FS)]

01–03B–59

01–03B

Fuel Injector Operation Inspection

Spark Test

1. Disconnect the fuel pump relay connector.
2. Verify that each high-tension lead and connector is connected properly.
3. Inspect the ignition system in the following procedure.

Warning

••••

High voltage in the ignition system can cause strong electrical shock which can result in serious
injury. Avoid direct contact to the vehicle body during the following spark test.

End Of Sie

STEP

INSPECTION

RESULTS

ACTION

While cranking engine, inspect for fuel injector
operation sound at each cylinder using a
soundscope.
Is operation sound heard?

Yes

Fuel injector operation is okay.

All cylinders no heard:
Go to next step.
Some cylinders no heard:
Go to Step 3.

Carry out main relay operation inspection.
Is main relay operation normal?

Yes

Inspect following:

•

Fuel injector power system related wiring
harness and connectors

•

PCM connectors

•

Fuel injector GND and related wiring harness
and connectors

Repair or replace malfunctioning parts.

Change fuel injector connector of not operating
fuel injector and operating fuel injector.
Is operation sound heard?

Yes

Go to next step.

Replace fuel injector.

Are wiring harness and connectors of not
operating fuel injector okay? (Open or short)

Yes

Inspect PCM terminal voltage of fuel injector
signal.

Repair or replace malfunctioning parts.

STEP

INSPECTION

RESULTS

ACTION

•

Remove high-tension lead from spark plug.

•

Hold high-tension lead with installed pliers
5—10 mm {0.20—0.39 in} from GND.

•

Crank engine and verify there is a strong
blue spark. (Inspect each cylinder.)

Yes

Ignition system is okay.

Some cylinders do not spark:
Go to next step.
All cylinders do not spark:
Go to Step 3.

•

Is high-tension lead resistance correct?

Yes

Inspect for cracks or damage of high-tension lead and
ignition coil.

Replace high-tension lead.

•

Does PCM or ignition coil connector have
poor connection?

Yes

Repair or replace connector.

Go to next step.

•

Is ignition coil winding resistance okay?

Yes

Go to next step.

Replace ignition coil.

•

Are following parts okay?
— CKP sensor and crankshaft pulley (also,

inspect gap)

Specification
0.5—1.5 mm {0.020—0.059 in}

— PCM terminal 21/22 voltage

Specification
Approx. 1.5 V

Yes

Inspect for open or short in wiring harness and
connector of CKP sensor.

Repair or replace malfunctioning parts.

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MECHANICAL [ZM]

01–10A–1

01–10A

01–10A MECHANICAL [ZM]

MECHANICAL LOCATION INDEX [ZM]. 01–10A–2
DRIVE BELT INSPECTION [ZM] . . . . . . 01–10A–3

Drive Belt Deflection Inspection . . . . . . 01–10A–3
Drive Belt Tension Inspection . . . . . . . 01–10A–3

DRIVE BELT ADJUSTMENT [ZM] . . . . . 01–10A–4
VALVE CLEARANCE

INSPECTION [ZM] . . . . . . . . . . . . . . . . 01–10A–5

VALVE CLEARANCE ADJUSTMENT

[ZM] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–10A–6

COMPRESSION INSPECTION [ZM]. . . . 01–10A–8

Compression . . . . . . . . . . . . . . . . . . . . 01–10A–8

TIMING BELT

REMOVAL/INSTALLATION [ZM] . . . . . 01–10A–9

No.3 Engine Mount Removal Note . . . 01–10A–10
Pulley Lock Bolt Removal/Installation

Note . . . . . . . . . . . . . . . . . . . . . . . . . . 01–10A–10

Timing Belt Removal Note . . . . . . . . . . 01–10A–10
Tensioner, Tensioner Spring

Installation Note . . . . . . . . . . . . . . . . . 01–10A–11

Timing Belt Installation Note . . . . . . . . 01–10A–11
No.3 Engine Mount Installation Note . . 01–10A–13
Cylinder Head Cover

Installation Note . . . . . . . . . . . . . . . . . 01–10A–13

CYLINDER HEAD GASKET

REPLACEMENT [ZM] . . . . . . . . . . . . . . 01–10A–13

Camshaft Pulley Removal Note . . . . . .  01–10A–14
Camshaft Removal Note  . . . . . . . . . . .  01–10A–15
Cylinder Head Removal Note  . . . . . . .  01–10A–15
Cylinder Head Installation Note . . . . . .  01–10A–15

Camshaft Installation Note . . . . . . . . . . 01–10A–16
Camshaft Pulley Installation Note . . . . . 01–10A–17

FRONT OIL SEAL

REPLACEMENT [ZM] . . . . . . . . . . . . . . 01–10A–18

Front Oil Seal Removal Note . . . . . . . . 01–10A–18
Front Oil Seal Installation Note . . . . . . . 01–10A–18

REAR OIL SEAL REPLACEMENT [ZM] . 01–10A–19

Rear Oil Seal Removal Note . . . . . . . . . 01–10A–19
Rear Oil Seal Installation Note . . . . . . . 01–10A–19

ENGINE

REMOVAL/INSTALLATION [ZM] . . . . . 01–10A–20

No.1 Engine Mount Removal Note . . . . 01–10A–22
Engine Mount Member

Removal Note . . . . . . . . . . . . . . . . . . . 01–10A–22

No.4 Engine Mount Removal Note . . . . 01–10A–22
No.3 Engine Mount Installation Note. . . 01–10A–22
No.4 Engine Mount Installation Note. . . 01–10A–22
No.2 Engine Mount Installation Note. . . 01–10A–23
Engine Mount Member

Installation Note . . . . . . . . . . . . . . . . . 01–10A–23

No.1 Engine Mount Installation Note. . . 01–10A–23

ENGINE

DISASSEMBLY/ASSEMBLY [ZM]. . . . . 01–10A–24

ENGINE TUNE-UP [ZM] . . . . . . . . . . . . . . 01–10A–25

Engine Tune-up Preparation . . . . . . . . . 01–10A–25
Ignition Timing Inspection . . . . . . . . . . . 01–10A–25
Idle Speed Adjustment  . . . . . . . . . . . . . 01–10A–26
Idle-up Speed Inspection  . . . . . . . . . . . 01–10A–26
Idle Mixture Inspection  . . . . . . . . . . . . . 01–10A–27

End of Toc

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